Despite the Reserve Bank’s call for caution to people against the use of virtual currencies, a domestic Bitcoin exchange today said it is adding over 2,500 users a day and has reached five lakh downloads. Zebpay, an app-absed Bitcoin exchange, said it has had five lakh downloads on the Android operating system and is adding more than 2,500 users every day. The company, launched in 2015, said, the increasing downloads highlight the “growing acceptance of Bitcoins as one of the most popular emerging asset class.” The Rediff.com : 17th. May,17